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2004年的美国先进科技:用培养皿里的人造脑控制飞行

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发表于 2012-9-26 04:11:06 | 显示全部楼层 |阅读模式
本帖最后由 henanhujaa 于 2012-9-26 04:13 编辑



在美国佛罗里达干的事情,大体是在玻璃皿的底上先布置好电极阵列,然后在上面培养老鼠的神经元细胞。这些神经元彼此连接,成为一个“人造脑”,然后被用来控制一个F-22的飞行仿真器。

开头神经元是分离的,然后发生彼此交联,逐渐形成神经网络。一共用了大约25000个神经元和60个双向电极,然后连到F-22的仿真器上。一开始根本不能飞,但是在经过15分钟的学习之后,就能进行稳定的定向平飞了。现在,这个“人工脑”已经进步到可以控制在不同风力中的颠簸和滚转了。

http://news.discovery.com/tech/brain-dish-flies-plane-041022.html

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 楼主| 发表于 2012-9-26 04:28:30 | 显示全部楼层
可能有的人根本就不知道西方国家所谓的科研究竟是怎么回事,那么我们来转载点东西,看完这些,你就知道为什么私营企业包括上市公司在内,根本就没有能力来搞科研了。
 楼主| 发表于 2012-9-26 04:30:55 | 显示全部楼层
NASA Has Spent $20 Billion On Canceled Projects [Infographic] But Congressmen have a plan to revamp the space agency so it runs more efficiently, like the FBI.
By Emily ElertPosted 09.25.2012 at 11:00 am
14 Comments

Cool space vehicles that almost existed NASA

Last week, several Congressmen from the House of Representatives introduced a bill (PDF) that, if passed into law, would restructure NASA's leadership. The new law would take away most of the President's control of the space agency and give it to a to a Board of Directors, and would also institute a 10-year term for NASA Administrators, just like they have in the FBI.
At the press conference, the Congressmen introducing the bill said they thought it would serve to straighten out NASA's long-term goals, and cited the $20 billion the agency has spent on projects that were ultimately canceled:
Canceled NASA Programs: Emily Elert, via Republican Study Committee


Click here to see a detailed version of this infographic.
Twenty billion is nothing to sneeze at, though it's worth noting that the Department of Defense has spent over $46 billion in canceled weapons programs over the last decade alone. That's over twice what NASA wasted, in half the time. Or, to put it another way, the DoD has lost over four times as much money to canceled projects as NASA.
Whether or not the new bill would help NASA get its own priorities straight (and keep them there), we may never find out: According to SpaceNews.com, a website run by the company Imaginova, policy experts in Washington say that the legislation is likely dead on arrival.



原文网址: http://www.popsci.com/science/article/2012-09/infographic-nasas-canceled-projects
 楼主| 发表于 2012-9-26 04:33:47 | 显示全部楼层
$46 Billion Worth of Cancelled Programsby John Reed on July 19, 2011


So here’s an interesting bit of defense technology related info presented by the Center for Strategic and Budgetary Assessments at a press conference to discuss defense spending yesterday.
It’s a breakdown of just how much all those weapons programs that were cancelled in the last decade cost us:
Future Combat Systems (FCS) $18.1B
Comanche helicopter $7.9B
nPOESS satellite $5.8B
VH-71 Presidential Helicopter $3.7B
Expeditionary Fighting Vehicle (EFV) $3.3B
Transformational SATCOM (TSAT) $3.2B
Crusader $2.2B
Advanced SEAL Delivery System (ASDS) $0.6 B
Armed Reconnaissance Helicopter $0.5 B
Aerial Common Sensor $0.4 B
CG(X) next Generation Cruiser $0.2B
CSAR-X $0.2B
All told, that’s about $46 billion, a significant chunk of change. CSBA’s Todd Harrison (and many others throughout the years) urged the Pentagon to start programs off right with realistic requirements and tight oversight to prevent such cancellations from ever happening. Still, you’ve got to realize that a lot (but certainly not all) of the lessons learned in the development of these systems will be put to use in their replacements. Who knows how much tech from the Commanche was featured on the stealth helos that took out bin Laden?



Read more: http://defensetech.org/2011/07/19/46-billion-worth-of-cancelled-programs/#ixzz27W1rskib
Defense.org

原文网址:http://defensetech.org/2011/07/19/46-billion-worth-of-cancelled-programs/
 楼主| 发表于 2012-9-26 04:36:27 | 显示全部楼层
本帖最后由 henanhujaa 于 2012-9-26 04:46 编辑

再次重申一下:即便是2010年的INTEL公司,一年到头来的利润也不过区区一百亿美元左右,根本就没这个实力来搞科研。

在今天的西方,真正搞科研的,只有政府机构,然后是类似于财富500强中的一些大公司从这些机构里承包一些子项目,同时再来同类似于斯坦福、麻省理工这样的大专院校合作一下。

美国科研机构的三大支柱是:DARPA,NASA和NSF

这三家,完全就是政府机构,不折不扣的官僚机关。它们的任务其实主要是发钱,从国会要钱,然后再来砸钱。

搞科研,是一个不折不扣的赔本生意,没有什么大公司能够承担得起,只有依靠国家的力量才行。
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